Longines L441 Mode D'emploi page 21

CHECKS / SERVICES
How often should my watch be checked?
We recommend that your watch's water-resistance be checked
every year (partial service with movement check).
How often should my watch be serviced?
Like any other precision instrument a watch should be serviced
regularly to ensure that it runs perfectly. We cannot say how
often you should have your watch serviced as this depends on
the model, the climate where you live and how you look after
the watch yourself. As a rule, a watch should be serviced every
4 or 5 years, depending on the conditions in which it is worn.
Where should I go to get my watch serviced or for a
new battery?
We recommend that you go to an approved LONGINES agent
or retailer. They are the only people who have the necessary
tools and apparatus to work on your watch and to carry out
the necessary checks to a professional level. Moreover, only
specialists can guarantee that their work meets the stringent
quality standards set by LONGINES.
What can I do to ensure that my LONGINES watch
functions perfectly for many years?
Magnetic fields: avoid putting your watch on a loud-speaker
or on a refrigerator because these machines create magnetic
fields that may damage it.
Salt-water: always rinse your watch in fresh water after
swimming in the sea.
Shocks: avoid subjecting your watch to shocks, including
sudden changes in temperature.
Screw-in crown: always make sure you have screwed the
crown in fully to avoid any humidity getting into the mechanism.
Push-in crown: always push the crown back in to the neutral
position to avoid any humidity getting into the mechanism.
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Cleaning: use a toothbrush and soapy water to clean metal
bracelets and water-resistant cases and a soft cloth to dry
off afterwards.
Chemical products: avoid all direct contact with solvents,
detergents, perfume, cosmetics, etc. which may damage the
bracelet or strap, the case or the seals.
Temperatures: avoid exposing your watch to extreme tempe-
ratures (over 60 ° C or 140 ° F and under 0 ° C or 32 ° F) and to
sudden fluctuations in temperature.
Water-resistance: we cannot guarantee that your watch will be
permanently water-resistant. The seal may be affected by wear
or by an accidental shock to the crown. As recommended in our
service instructions, you should have the water-resistant seals of
your watch tested once a year by an approved LONGINES agent.
Chronograph push-pieces: do not adjust the push-pieces un-
der water as this may allow humidity to get into the mechanism.
PRECAUTIONS REGARDING WATER-RESISTANCE
If your watch is water-resistant it is essential that the seals
be checked each year before the bathing season because,
without your realising it, they might have been damaged as
the result of a shock.
If the case has to be opened for any reason, the seals for the
glass and the case-back as well as the crown (and/or push-
pieces) must be checked and, if necessary, replaced.
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